US20040170484A1 - Striking plug - Google Patents

Striking plug Download PDF

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Publication number
US20040170484A1
US20040170484A1 US10/736,981 US73698103A US2004170484A1 US 20040170484 A1 US20040170484 A1 US 20040170484A1 US 73698103 A US73698103 A US 73698103A US 2004170484 A1 US2004170484 A1 US 2004170484A1
Authority
US
United States
Prior art keywords
expansion
plug
crural
nail
bearing collar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/736,981
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English (en)
Inventor
Fabrice Pourtier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe de Prospection et dInventions Techniques SPIT SAS
Original Assignee
Societe de Prospection et dInventions Techniques SPIT SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe de Prospection et dInventions Techniques SPIT SAS filed Critical Societe de Prospection et dInventions Techniques SPIT SAS
Assigned to SOCIETE DE PROSPECTION ET D'INVENTIONS TECHNIQUES SPIT reassignment SOCIETE DE PROSPECTION ET D'INVENTIONS TECHNIQUES SPIT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: POURTIER, FABRICE
Publication of US20040170484A1 publication Critical patent/US20040170484A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/02—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose in one piece with protrusions or ridges on the shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
    • F16B13/126—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like fastened by inserting an unthreaded element, e.g. pin or nail

Definitions

  • the present invention relates to a plug called a striking plug
  • Such a plug has the advantage of being simple to fit through the part to be fastened to the support material, by drilling an anchoring hole through the part and into the support, by inserting the plug therein, still through the part, until the collar of the plug comes into abutment against the part then presses against the support, by inserting a nail into the plug, which nail is struck using a tool in order to bring about the expansion and anchorage of the plug and therefore the fastening of the part to the support. The nail may subsequently be “unscrewed” in order to take it out of the plug.
  • the element for fastening a striking plug is a nail and not a screw, even if the nail is provided with a thread. This is because this thread is not shaped for screwing, but only for unscrewing.
  • a striking plug can be used in all types of material, such as concrete, solid breeze block, solid brick, hollow breeze block, hollow brick and filler block.
  • a striking plug has a tubular hollow body surmounted by a bearing collar, with a crural expansion part whose outer surface may have catching means, which is slotted in an axial plane.
  • the plug comprises two diametral longitudinal slots which are symmetrical with respect to its axis for its expansion.
  • Document FR 2 470 279 discloses a plug of a type which is somewhat similar, but which is however not a striking plug.
  • the plug of this prior art comprises an intermediate expansion part, in the wall of which are made recesses, and which provides better guiding of a screw.
  • the expansion of this intermediate part may be hindered as a result of the plurality of these recesses which, incidentally, extend symmetrically with respect to the axial plane of the slots of the crural part.
  • inserting the screw causes not so much the expansion of this intermediate part as its bulging.
  • the invention of the present application aims to provide a striking plug ensuring, with proper and long guiding of the nail, better expansion on insertion of the nail.
  • the invention relates to a striking plug comprising a tubular hollow body surmounted by a bearing collar with
  • the axial length of the expansion apertures of the intermediate part may be shorter than that of the slots of the crural part.
  • the expansion apertures of the intermediate part lie in a zigzag.
  • the branches forming the zigzag of the expansion aperture form acute angles between them.
  • each expansion aperture of the intermediate part is extended in its portion close to the bearing collar, by a side branch intended to reduce the risk of tearing at the start of expansion.
  • each expansion aperture of the intermediate part forms at least one retaining lug projecting out of the wall of the plug.
  • the surface of the inner bore of the plug, close to the bearing collar, is shaped in order to present a bead for retaining an expansion nail.
  • two axially offset lugs are provided projecting out of the outer surface of the plug.
  • FIG. 1 shows a perspective view of a first embodiment of the plug of the invention and of a nail
  • FIG. 2 shows a profile view of the plug and of the nail of FIG. 1;
  • FIG. 3 shows a profile view of the plug and of the nail of FIG. 2, rotated through 90° with respect to that of FIG. 2;
  • FIG. 4 shows a view of the nail and a sectional view of the plug along the axis II-II of FIG. 2;
  • FIG. 5 shows a perspective view of another embodiment of the plug of the invention.
  • FIG. 6 shows a profile view of the plug of FIG. 5
  • FIG. 7 shows an outline diagram of the behaviour of the plug of FIG. 5 in a hollow support.
  • the plug 1 of the invention comprises a tubular body 3 , extending along an axis 6 , surmounted by a bearing collar 2 .
  • a nail 10 is inserted into the plug 1 .
  • This plug 1 is used for nails 10 comprising a head 12 and a shank 11 , this shank 11 comprising a thread 13 , which is shaped to allow the nail 10 to be pushed in by striking it, thus at the same time allowing the unscrewing of the nail 10 .
  • the tubular body 3 of the plug 1 has a crural expansion part 20 and an intermediate part 30 between the crural expansion part 20 and the bearing collar 2 .
  • the crural expansion part 20 is split along a plane containing the axis 6 ; it therefore comprises two slots ( 20 , 21 ′) which divide it into two half-bodies ( 20 ′, 20 ′′).
  • each slot ( 21 , 21 ′) divides into two slots ( 22 a , 22 b ) which lie symmetrically with respect to the axis of the slot ( 21 , 21 ′) from which they start, over the axisymmetric surface of a plug 1 .
  • the inner bore 4 of the crural expansion part 20 has a slightly frustoconical shape, narrowing towards the end, and with a diameter less than that of the shank of the nail 10 .
  • the outer surface 7 also has a slightly bulging frustoconical shape.
  • the intermediate expansion part 30 of the plug 1 comprises a recessed wall in which an expansion aperture 31 is pierced, substantially in the extension of each slot ( 21 , 21 ′) of the crural part 20 .
  • the outer surface of this intermediate part 30 comprises catching lugs 34 , of which there are eight in this case, distributed symmetrically four by four with respect to the axial plane containing the two slots ( 21 , 21 ′) of the crural expansion part 20 ; each of the series of four lugs 34 are in line, the lugs 34 being mutually offset longitudinally.
  • the intermediate part 30 is overall a tubular body of substantially cylindrical shape having an axis 6 .
  • Each expansion aperture 31 of the intermediate part 30 lies overall in a longitudinal direction, substantially in the extension of each slot ( 21 , 21 ′) and therefore in a direction substantially parallel to the axis 6 .
  • Each expansion aperture 31 lies in a zigzag shape on either side of the axial plane comprising the two slots ( 21 , 21 ′) of the crural expansion part 20 .
  • the successive branches 35 forming the zigzag of each expansion aperture 31 form acute angles between them; in this way, they provide, on the path of the nail 10 along this wall, obstacles 36 not allowing the nail 10 to engage in the apertures 31 .
  • the last two branches 35 of each aperture 31 before the crural expansion part 20 also make a catching lug 33 in the radial direction forming an obstacle for the support receiving the plug 1 .
  • Each catching lug 33 projects substantially perpendicularly out of the outer surface of the plug 1 , at the intersection between the last two branches 35 of each expansion aperture 31 , and its radial thickness decreases along each of the branches 35 , the surface connecting these two branches 35 being substantially flat, which gives the catching lug 33 an overall trihedral shape.
  • the expansion aperture 31 of the plug 1 of the invention comprises, in its portion close to the bearing collar 2 , a side branch 37 , finishing at the same longitudinal level of the previous branch 35 , so as to reduce the risk of the wall of the plug 1 tearing at the start of expansion, that is to say as the portion of the plug 1 close to the bearing collar 2 expands.
  • Each slot ( 21 , 21 ′) of the crural expansion part 20 is spaced apart from the associated expansion aperture 31 which provides, between the two slots ( 22 a , 22 b ) extending the slot ( 21 , 21 ′) and the expansion aperture 31 , an expansion region 22 in the plane of the slots ( 21 , 21 ′).
  • the nail 10 is therefore immobilized in translation along the axis 6 by the retaining bead 38 and the narrowing 39 ; thus, the user does not need to unite the nail 10 and the plug 1 when taking them. Furthermore, he may push the plug 1 into the support until the bearing collar 2 comes into abutment on the part to be fastened to the support, the narrowing 39 preventing the nail 10 from being pushed into the plug 1 and from causing its expansion before the said abutment. It is then possible to push the nail 10 in by striking it using a suitable tool, such as a hammer. In the intermediate part 30 , the diameter of the inner bore 4 of the plug 1 is smaller than the diameter of the shank 11 of the nail 10 .
  • the plug 1 starts its expansion and therefore its anchoring in the wall of the support, in particular by means of its catching lugs 34 . Due to the side branch 37 , the expansion of the intermediate part 30 does not cause the plug 1 to tear, at the portion of the expansion aperture 31 close to the bearing collar 2 .
  • a different set of catching lugs can also be provided, in this case especially provided for fastening a part to a hollow support material. References of elements which have not changed, and those of the plug 1 , are preserved in FIGS. 5 and 6.
  • two fairly large lugs ( 40 , 40 ′) are provided, projecting out of the outer surface of the plug 1 , one on each side of the plane containing the two slots ( 21 , 21 ′) of the crural expansion part 20 . These lugs ( 40 , 40 ′) are axially offset.
  • One ( 40 ) is located in the lower part of the intermediate part 30 , at the catching lug 33 formed by the last two branches 35 of the expansion aperture 31 , the other ( 40 ′) is located at the expansion region 22 , made by the branches ( 22 a , 22 b ) extending each slot ( 21 , 21 ′).
  • the eight catching lugs 34 have been replaced by grooves ( 35 , 35 ′) in the intermediate part 30 . There are two of these grooves on the side of the plug 1 where the lug 40 is closest to the bearing collar 2 , and three on the other side.
  • the crural expansion part 20 is also provided with grooves 41 . These grooves 41 help the plug 1 to catch in the wall of the support to which it is desired to fasten the part.
  • the presence of the lugs ( 40 , 40 ′) allows the plug 1 to be anchored in the support, by being braced against the rear face 50 of the hollow support material 51 , whatever its thickness or the size of the crater 52 formed on drilling.
  • the grooves ( 35 , 35 ′) also help anchoring. This plug 1 can also be used in a solid support. The grooves 41 are then involved in the anchoring.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Surgical Instruments (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Taps Or Cocks (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Electronic Switches (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Dowels (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
US10/736,981 2002-12-18 2003-12-17 Striking plug Abandoned US20040170484A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0216096 2002-12-18
FR0216096A FR2849121B1 (fr) 2002-12-18 2002-12-18 Cheville a frapper

Publications (1)

Publication Number Publication Date
US20040170484A1 true US20040170484A1 (en) 2004-09-02

Family

ID=32406159

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/736,981 Abandoned US20040170484A1 (en) 2002-12-18 2003-12-17 Striking plug

Country Status (9)

Country Link
US (1) US20040170484A1 (da)
EP (1) EP1435464B1 (da)
AT (1) ATE326643T1 (da)
CA (1) CA2453374C (da)
DE (1) DE60305282T2 (da)
DK (1) DK1435464T3 (da)
ES (1) ES2265095T3 (da)
FR (1) FR2849121B1 (da)
PT (1) PT1435464E (da)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100453829C (zh) * 2006-04-10 2009-01-21 张金明 墙钉
US7633722B1 (en) 2006-09-15 2009-12-15 Western Digital Technologies, Inc. Disk drive actuator rotary bearing attachment with cam member
US7686555B1 (en) * 2007-02-06 2010-03-30 Western Digital Technologies, Inc. Wedge based fastener
US20120089144A1 (en) * 2008-09-02 2012-04-12 Stryker Trauma Sa Locking screw with synchronized thread
US20140058461A1 (en) * 2012-08-27 2014-02-27 Michael Black Fenestrated Bone Screw
USD759472S1 (en) * 2014-08-20 2016-06-21 Fischerwerke Gmbh & Co. Kg Wall anchor
CN107288976A (zh) * 2017-07-06 2017-10-24 海盐县通顺标准件厂 一种锤钉膨胀螺丝
US20170321736A1 (en) * 2015-02-12 2017-11-09 Lamello Ag Dowel element, fastening device, method for producing a dowel element, and method for installing a fastening device
USD959969S1 (en) * 2019-11-20 2022-08-09 Masterpiece Hardware Industrial Co., Ltd. Wall anchor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011081742A1 (de) * 2011-08-29 2013-02-28 Adolf Würth GmbH & Co. KG Dübel
ITTO20120036A1 (it) 2012-01-19 2013-07-20 Illinois Tool Works Tassello ad espansione controllata, vite e dispositivo di fissaggio ottenibile dagli stessi
DE102020109558A1 (de) 2020-04-06 2021-10-07 Redima Ag Abschalvorrichtung zum Abschalen einer zu verfüllenden Bodenfuge an einem Wandfertigteil

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171321A (en) * 1960-05-14 1965-03-02 Fischer Artur Expansion bolt arrangement
US3413887A (en) * 1965-01-30 1968-12-03 Max Langensiepen Kommanditgese Expanding dowel of thermoplastic material
US4142440A (en) * 1976-07-07 1979-03-06 Arnold Schefer Expansion plug
US4210057A (en) * 1976-10-06 1980-07-01 Upat Gmbh & Co. Anchoring dowel with detent lugs
US4752170A (en) * 1986-09-04 1988-06-21 Mechanical Plastics Corp. Fastening device with nesting anchoring elements
US5080543A (en) * 1990-01-08 1992-01-14 Engineered Construction Components (America) Inc. Fastening sleeves and fastening systems employing same
US5533851A (en) * 1994-09-30 1996-07-09 Clairson, Inc. Hollow wall anchor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947752A1 (de) * 1979-11-27 1981-07-23 M.Meisinger KG, 8890 Aichach Kunststoffduebel
DE3030643A1 (de) * 1980-08-13 1982-03-04 TOX-Dübel-Werk Richard W. Heckhausen KG, 7762 Bodman-Ludwigshafen Nagelduebel
DE10045650A1 (de) * 2000-09-15 2002-03-28 Wuerth Adolf Gmbh & Co Kg Kunststoffdübel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171321A (en) * 1960-05-14 1965-03-02 Fischer Artur Expansion bolt arrangement
US3413887A (en) * 1965-01-30 1968-12-03 Max Langensiepen Kommanditgese Expanding dowel of thermoplastic material
US4142440A (en) * 1976-07-07 1979-03-06 Arnold Schefer Expansion plug
US4210057A (en) * 1976-10-06 1980-07-01 Upat Gmbh & Co. Anchoring dowel with detent lugs
US4752170A (en) * 1986-09-04 1988-06-21 Mechanical Plastics Corp. Fastening device with nesting anchoring elements
US5080543A (en) * 1990-01-08 1992-01-14 Engineered Construction Components (America) Inc. Fastening sleeves and fastening systems employing same
US5533851A (en) * 1994-09-30 1996-07-09 Clairson, Inc. Hollow wall anchor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100453829C (zh) * 2006-04-10 2009-01-21 张金明 墙钉
US7633722B1 (en) 2006-09-15 2009-12-15 Western Digital Technologies, Inc. Disk drive actuator rotary bearing attachment with cam member
US7686555B1 (en) * 2007-02-06 2010-03-30 Western Digital Technologies, Inc. Wedge based fastener
US8870507B1 (en) 2007-02-06 2014-10-28 Western Digital Technologies, Inc. Wedge based fastener
US20120089144A1 (en) * 2008-09-02 2012-04-12 Stryker Trauma Sa Locking screw with synchronized thread
US20140058461A1 (en) * 2012-08-27 2014-02-27 Michael Black Fenestrated Bone Screw
USD759472S1 (en) * 2014-08-20 2016-06-21 Fischerwerke Gmbh & Co. Kg Wall anchor
USD771482S1 (en) * 2014-08-20 2016-11-15 Fischerwerke Gmbh & Co. Kg Wall anchor
US20170321736A1 (en) * 2015-02-12 2017-11-09 Lamello Ag Dowel element, fastening device, method for producing a dowel element, and method for installing a fastening device
US10385897B2 (en) * 2015-02-12 2019-08-20 Lamello Ag Dowel element, fastening device, method for producing a dowel element, and method for installing a fastening device
AU2016218106B2 (en) * 2015-02-12 2020-03-26 Lamello Ag Anchor element, fastening device, method for producing an anchor element, and method for installing a fastening device
CN107288976A (zh) * 2017-07-06 2017-10-24 海盐县通顺标准件厂 一种锤钉膨胀螺丝
USD959969S1 (en) * 2019-11-20 2022-08-09 Masterpiece Hardware Industrial Co., Ltd. Wall anchor

Also Published As

Publication number Publication date
DE60305282D1 (de) 2006-06-22
FR2849121B1 (fr) 2005-08-26
FR2849121A1 (fr) 2004-06-25
ATE326643T1 (de) 2006-06-15
CA2453374C (en) 2007-08-21
DK1435464T3 (da) 2006-09-25
DE60305282T2 (de) 2007-01-18
EP1435464A1 (fr) 2004-07-07
ES2265095T3 (es) 2007-02-01
CA2453374A1 (en) 2004-06-18
PT1435464E (pt) 2006-10-31
EP1435464B1 (fr) 2006-05-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SOCIETE DE PROSPECTION ET D'INVENTIONS TECHNIQUES

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:POURTIER, FABRICE;REEL/FRAME:015350/0616

Effective date: 20040119

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION